Control Summary
This section describes the function of each TCPA300 and TCPA400 front panel
control and connector. The overview shows most functions and is followed by a
detailed des
cription. (See Figure 10.)
Some seldom-used functions do not appear in the illustration. These functions are
completely
discussed in the detailed descriptions that follow this illustration.
Figure 10: The TCPA300 front panel
1. The PROBE DEGAUSS AUTOBALANCE button removes residual
magnetism from the attached current probe. A multi-color LED indicates the
status of the degauss circuit.
2. The MANUAL BALANCE buttons allow you to fine-adjust DC offset from
the amplifier. The adjacent LED lights when one of the buttons has been
pressed.
3. The four probe error lights indicate the following faults: PROBE OPEN,
OVERLOAD (current or temperature), NOT TERMINATED INTO 50 Ω and
NONCOMPATIBLE PROBE TYPE.
4. The ON/STANDBY button turns on power to the amplifier.
5. The TCPA300 and TCPA400 output appears at the OUTPUT connector.
Connect this to a 50 Ω input of your o scilloscope.
TCPA300/400 Amplifiers and TCP300A/400 Series Current Probes User Manual 17
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